Strategies for rapid in vivo 1H and hyperpolarized 13C MR spectroscopic imaging

► Acquisition times for in vivo 3D 1H MRSI can be reduced to 4-5 min. ► Compressed sensing and parallel imaging are important for hyperpolarized 13C MRSI. ► Automated prescription of OVS gives robust 1H MRSI data with improved coverage. ► Spin echo 1H MRSI can provide improved quantification of short TE metabolites at 7 T. ► Dynamic hyperpolarized 13C MRSI can be performed with 3-5 s time resolution.